PT-2021-6793 · D Link · D-Link Dir-859

Published 2021-12-07 · Updated 2022-03-12 · CVE-2022-25106

Positive Technologies (AI Summary)

CVSS v2.0

7.1

High

Base vector

AV:N/AC:M/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions D-Link DIR-859 version 1.05

Description The issue is related to a stack-based buffer overflow in the genacgi main() function, which can cause a Denial of Service (DoS) when a crafted payload is sent to the /gena.cgi API endpoint. This allows an attacker to potentially disrupt service.

Recommendations For D-Link DIR-859 version 1.05, consider disabling the genacgi main() function as a temporary workaround to prevent exploitation until a patch is available. Restrict access to the /gena.cgi API endpoint to minimize the risk of a Denial of Service (DoS) attack. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Buffer Overflow

Stack Overflow

Memory Corruption

Weakness Enumeration

CWE-119

CWE-121

CWE-787

Related Identifiers

BDU:2022-02211

CVE-2022-25106

Affected Products

D-Link Dir-859

References · 10

• 🔥 https://github.com/chunklhit/cve/blob/master/dlink/DIR859/BufferOverflow.md · Exploit
• https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10267 · Vendor Advisory
• https://dlink.com/en/security-bulletin · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-25106 · Security Note
• https://bdu.fstec.ru/vul/2022-02211 · Security Note
• https://osv.dev/vulnerability/CVE-2022-25106 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-46381 · Security Note
• https://t.me/cvenotify/27784 · Telegram Post
• https://vuldb.com/ru/?id.194246 · Note
• https://t.me/cibsecurity/38468 · Telegram Post